History With Kayleigh Official on MSN
The 4,000 BCE lock and key that changed security forever
The oldest known lock and key system dates back to around 4000 BCE in Mesopotamia. Crafted from wood and surprisingly ...
Interesting Engineering on MSN
1900-year-old Roman doctor used human feces and thyme as medicine, study suggests
A cringeworthy new study has discovered dark-brown flakes inside a Roman glass medicinal vial, ...
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